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US 2023/0155174 A1Published application
Lithium metal battery electrolytes including flame retardant additives
AssigneeGM Global Technology Operations LLC
InventorsSeung-Woo Chu, Li Yang, Umamaheswari Viswanathan, Mary E Fortier
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Abstract
An electrolyte for a lithium metal battery includes a nonaqueous aprotic organic solvent, a lithium salt dissolved in the nonaqueous aprotic organic solvent and, by volume, from 1% to 10% of a flame retardant additive. The flame retardant additive is at least one of an organophosphate compound, an organophosphite compound, organophosphonate compound, or a phosphazene compound.
Claims20
An electrolyte for a lithium metal battery, the electrolyte comprising:
- a nonaqueous aprotic organic solvent;
- a lithium salt dissolved in the nonaqueous aprotic organic solvent;
- and
- 1% to 10%, by volume, of a flame retardant additive,
- wherein the flame retardant additive is at least one of an organophosphate compound, an organophosphite compound, organophosphonate compound, or a phosphazene compound.
2 more elements
An electrochemical cell for a lithium metal battery, the electrochemical cell comprising:
- a lithium metal negative electrode;
- a positive electrode spaced apart from the negative electrode, the positive electrode including a transition metal oxide that can undergo a reversible intercalation of lithium ions;
- and
- an electrolyte in ionic contact with the lithium metal negative electrode and the positive electrode,
- wherein the electrolyte includes:
- a nonaqueous aprotic organic solvent;
- a lithium salt dissolved in the nonaqueous aprotic organic solvent;
- and
- 1% to 10%, by volume, of a flame retardant additive,
- wherein the flame retardant additive is at least one of an organophosphate compound, an organophosphite compound, organophosphonate compound, or a phosphazene compound.
7 more elements
Dependencies are inferred from the claim text.